CVE-2022-37454

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 5.2%, top 8% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this weekElevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 5%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

The Keccak XKCP SHA-3 reference implementation before fdc6fef has an integer overflow and resultant buffer overflow that allows attackers to execute arbitrary code or eliminate expected cryptographic properties. This occurs in the sponge function interface.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
91.6%
KEV
Not listed

Published

October 21, 2022

Last Modified

May 8, 2025

Advisory Details (9)

Auto-updated May 25, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

A Vulnerability in Implementations of SHA-3, Shake, EdDSA | Hacker News

https://news.ycombinator.com/item?id=35050307
generic🟡 PoC Available

SHA-3 Buffer Overflow – Nicky Mouha

https://mouha.be/sha-3-buffer-overflow/
generic

[SECURITY] Fedora 35 Update: php-8.0.25-1.fc35 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMIEXLMTW5GO36HTFFWIPB3OHZXCT3G4/
generic

[SECURITY] Fedora 36 Update: php-8.1.12-1.fc36 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3ALQ6BDDPX5HU5YBQOBMDVAA2TSGDKIJ/
generic Patch Available

[SECURITY] [DLA 3175-1] python3.7 security update

https://lists.debian.org/debian-lts-announce/2022/11/msg00000.html
generic Patch Available

[SECURITY] [DLA 3174-1] pysha3 security update

https://lists.debian.org/debian-lts-announce/2022/10/msg00041.html
github Patch Available

Buffer overflow in sponge queue functions · Advisory · XKCP/XKCP · GitHub

https://github.com/XKCP/XKCP/security/advisories/GHSA-6w4m-2xhg-2658
generic

A Vulnerability in Implementations of SHA-3, SHAKE, EdDSA, and Other NIST-Approved Algorithms

https://eprint.iacr.org/2023/331
generic

Hash Functions | CSRC

https://csrc.nist.gov/projects/hash-functions/sha-3-project

Vendor Advisories for CVE-2022-37454(4)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(12)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupython3.10-full (3.10.6-1~22.04.2) @ jammy2026-05-25ubuntu
ubuntulibpython3.7 (3.7.5-2ubuntu1~18.04.2+esm2) @ bionic2026-05-25ubuntu
ubuntupython3.9 (3.9.5-3ubuntu0~20.04.1+esm1) @ focal2026-05-25ubuntu
ubuntupython3.8 (3.8.0-3ubuntu1~18.04.2+esm1) @ bionic2026-05-25ubuntu
ubuntupython3-sha3 (1.0.2-4.2ubuntu0.22.04.1) @ jammy2026-05-25ubuntu
ubuntuphp7.4-opcache (7.4.3-4ubuntu2.15) @ focal2026-05-25ubuntu
ubuntulibpython3.6-minimal (3.6.9-1~18.04ubuntu1.10) @ bionic2026-05-25ubuntu
ubuntupypy3-venv (7.3.9+dfsg-1ubuntu0.1) @ jammy2026-05-25ubuntu
redhatphp:7.4-8080020230118140634.cc3424242023-05-16redhat
redhatphp:8.1-9020020230120141750.92023-05-09redhat
redhatphp-0:8.0.27-1.el9_12023-02-28redhat
redhatphp:8.0-8070020230118114629.ef3316622023-02-21redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(2 across 2 ecosystems)
PyPI(1)
PackageVulnerable rangeFixed inDependents
pysha30.1 ... 1.0b1 (10 versions)——
RubyGems(1)
PackageVulnerable rangeFixed inDependents
sha30.1.0 ... 1.0.4 (11 versions)1.0.5—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(9)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 14× in last 7d / 49× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 106 total refreshes for this CVE.

  1. 2026-07-23 02:13 UTCEG score recompute
  2. 2026-07-22 23:00 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2022-37454?
CVE-2022-37454 is a critical vulnerability published on October 21, 2022. The Keccak XKCP SHA-3 reference implementation before fdc6fef has an integer overflow and resultant buffer overflow that allows attackers to execute arbitrary code or eliminate expected cryptographic properties. This occurs in the sponge function interface.
When was CVE-2022-37454 disclosed?
CVE-2022-37454 was first published in the National Vulnerability Database on October 21, 2022, with the most recent update on May 8, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-37454 actively exploited?
CVE-2022-37454 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 91.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-37454?
CVE-2022-37454 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-37454?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-37454, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-37454

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